package com.zzh.lib.views;

import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.RectF;
import android.graphics.Typeface;
import android.util.AttributeSet;
import android.view.View;

import java.math.BigDecimal;
import java.math.MathContext;

/**
 * 圆形
 */
public class HRoundProgressBar extends View {
    private final Paint paint;

    private int roundColor;

    private int roundProgressColor;

    private int textColor;

    private float textSize;

    private float roundWidth;

    private int max;

    private int progress;

    private final boolean textIsDisplayable;

    private final int style;

    public static final int STROKE = 0;
    public static final int FILL = 1;

    public HRoundProgressBar(Context context) {
        this(context, null);
    }

    public HRoundProgressBar(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public HRoundProgressBar(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);

        paint = new Paint();

        TypedArray mTypedArray = context.obtainStyledAttributes(attrs, R.styleable.HRoundProgressBar);
        roundColor = mTypedArray.getColor(R.styleable.HRoundProgressBar_zh_round_color, Color.RED);
        roundProgressColor = mTypedArray.getColor(R.styleable.HRoundProgressBar_zh_round_progress_color, Color.GREEN);
        textColor = mTypedArray.getColor(R.styleable.HRoundProgressBar_zh_text_color, Color.GREEN);
        textSize = mTypedArray.getDimensionPixelSize(R.styleable.HRoundProgressBar_zh_text_size, 32);
        roundWidth = mTypedArray.getDimension(R.styleable.HRoundProgressBar_zh_round_width, 15);
        max = mTypedArray.getInteger(R.styleable.HRoundProgressBar_zh_max, 60);
        textIsDisplayable = mTypedArray.getBoolean(R.styleable.HRoundProgressBar_zh_text_is_displayable, false);
        style = mTypedArray.getInt(R.styleable.HRoundProgressBar_zh_style, 0);

        mTypedArray.recycle();
    }

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);

        int centre = getWidth() / 2;
        int radius = (int) (centre - roundWidth / 2);
        paint.setColor(roundColor);
        paint.setStyle(Paint.Style.STROKE);
        paint.setStrokeWidth(roundWidth);
        paint.setAntiAlias(true);
        canvas.drawCircle(centre, centre, radius, paint);

        paint.setStrokeWidth(0);
        paint.setColor(textColor);
        paint.setTextSize(textSize);
        paint.setTypeface(Typeface.DEFAULT_BOLD);
        int percent = (int) (((float) progress / (float) max) * 100);
        float textWidth = paint.measureText(percent + "%");

        if (textIsDisplayable && percent != 0 && style == STROKE) {
            canvas.drawText(percent + "%", centre - textWidth / 2, centre + textSize / 2, paint);
        }

        paint.setStrokeWidth(roundWidth);
        paint.setColor(roundProgressColor);
        RectF oval = new RectF(centre - radius, centre - radius, centre + radius, centre + radius);

        switch (style) {
            case STROKE: {
                paint.setStyle(Paint.Style.STROKE);
                canvas.drawArc(oval, 0, 360 * progress / max, false, paint);
                break;
            }
            case FILL: {
                BigDecimal pro = new BigDecimal(Integer.toString(progress));
                BigDecimal mMax = new BigDecimal(Integer.toString(max));
                int scale = 2;
                float result = pro.divide(mMax, new MathContext(3)).floatValue();
                paint.setStyle(Paint.Style.FILL_AND_STROKE);
                if (progress != 0)
                    canvas.drawArc(oval, 0, 360 * result, true, paint); // 根据进度画圆弧
                break;
            }
        }

    }

    public synchronized int getMax() {
        return max;
    }

    public synchronized void setMax(int max) {
        if (max < 0) {
            throw new IllegalArgumentException("max not less than 0");
        }
        this.max = (int) max;
    }

    public synchronized int getProgress() {
        return progress;
    }

    public synchronized void setProgress(int progress) {
        if (progress < 0) {
            throw new IllegalArgumentException("progress not less than 0");
        }
        if (progress > max) {
            progress = max;
        }
        if (progress <= max) {
            this.progress = progress;
            postInvalidate();
        }

    }

    public int getCricleColor() {
        return roundColor;
    }

    public void setCricleColor(int cricleColor) {
        this.roundColor = cricleColor;
    }

    public int getCricleProgressColor() {
        return roundProgressColor;
    }

    public void setCricleProgressColor(int cricleProgressColor) {
        this.roundProgressColor = cricleProgressColor;
    }

    public int getTextColor() {
        return textColor;
    }

    public void setTextColor(int textColor) {
        this.textColor = textColor;
    }

    public float getTextSize() {
        return textSize;
    }

    public void setTextSize(float textSize) {
        this.textSize = textSize;
    }

    public float getRoundWidth() {
        return roundWidth;
    }

    public void setRoundWidth(float roundWidth) {
        this.roundWidth = roundWidth;
    }
}
